Extra-axial ependymoma of the cerebral convexity: A very rare intracranial adult tumor

Berhili, Soufiane; Aïssa, A.; Kadiri, Selma El; Cherradi, Nadia; Majjaoui, Sanae El; Kacemi, H. El; Kebdani, Tayeb; Benjaafar, Noureddine

doi:10.1177/1971400916687584

Cited by 8 publications

(9 citation statements)

References 17 publications

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“…reported in 2017 that there were only 14 adult cases in the English literature of intracranial extra-axial ependymomas. [ 3 ] Although ependymomas may extend into the CPA or subarachnoid space, a primary extra-axial intracranial ependymoma in the CPA is extremely rare. [ 8 ] Ebrahimi et al .…”

Section: Discussionmentioning

confidence: 99%

“…[15] Berhili et al reported in 2017 that there were only 14 adult cases in the English literature of intracranial extra-axial ependymomas. [3] Although ependymomas may extend into the CPA or subarachnoid space, a primary extra-axial intracranial ependymoma in the CPA is extremely rare. [8] Ebrahimi et al highlighted the importance of considering ependymomas as a differential diagnosis among CPA tumors as six adult cases of CPA ependymomas had been reported in the English literature by 2020.…”

Section: Discussionmentioning

confidence: 99%

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Case report: Primary ependymoma of the trigeminal nerve presenting as trigeminal neuralgia

Shah

Islam

Suleman

et al. 2022

Surgical Neurology International

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Background: Ependymomas are usually found in the posterior fossa originating from the fourth ventricle. Primary ependymomas arising from cranial nerves are rare with only a handful of reported cases. Trigeminal neuralgia (TN) is rarely due to space occupying lesions. Case Description: A 20-year-old female presented with TN with a rare presentation of a pure extra-axial ependymoma involving the right trigeminal nerve in the cerebellopontine angle. Conclusion: It is essential to explore the possibility of a mass arising from the trigeminal nerve when investigating the cause of TN.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Case report: Primary ependymoma of the trigeminal nerve presenting as trigeminal neuralgia

Shah

Islam

Suleman

et al. 2022

Surgical Neurology International

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“…In the radiologic findings of this case, pure cortical type, absence of a cystic lesion, and with no connection to ventricle were factors that contributed to the difficulty in recognizing the tumor as an EPN. Because a pure cortical, extra-ventricular nature, and with no ventricular lining are rare findings in EPNs [ 5 17 ].…”

Section: Discussionmentioning

confidence: 99%

Pure Cortical Ependymoma With RELA-Fusion Positive in a Young Adult

Lee

et al. 2021

Brain Tumor Res Treat

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A 25-year-old female presented with a generalized tonic-clonic seizure. She had no previous history of seizures. A brain magnetic resonance imaging scan revealed a solitary enhancing mass in the right fronto-parietal cortex. During surgery, the mass was noted to be pure cortical with no connection to the ventricular lining. The tumor was completely resected. After surgery, the patient had no further seizures. The biopsy result showed a supratentorial ependymoma, which was C11orf95-RELA -fusionpositive.

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“…Only few case reports on extraaxial ependymomas exist (IEAE). Due to the rare entity of IEAE, no precise relation to intra-axial ependymomas can be made, but the vast majority are intra-axial lesions (34)(35)(36).…”

Section: Ependymomamentioning

confidence: 99%

Intraventricular neuroepithelial tumors: Surgical outcome, technical considerations and review of literature

Aftahy

Barz

Krauss

et al. 2020

Preprint

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Background: Intraventricular neuroepithelial tumors (IVT) are rare lesions and comprise different pathological entities such as ependymomas, subependymomas and central neurocytomas. The treatment of choice is neurosurgical resection, which can be challenging due to their intraventricular location. Different surgical approaches to the ventricles are described. Here we report a large series of IVTs, its postoperative outcome at a single tertiary center and discuss suitable surgical approaches. Methods: We performed a retrospective chart review at a single tertiary neurosurgical center between 03/2009-05/2019. We included patients that underwent resection of an IVT emphasizing on surgical approach, extent of resection, clinical outcome and postoperative complications.Results: 45 IVTs were resected from 03/2009 to 05/2019, 13 ependymomas, 21 subependymomas, 10 central neurocytomas and one glioependymal cyst. Median age was 52,5 years with 55.6% (25) male and 44.4% (20) female patients. Gross total resection was achieved in 93.3% (42/45). 84.6% (11/13) of ependymomas, 100% (12/21) of subependymomas, 90% (9/10) of central neurocytomas and one glioependymal cyst were completely removed. Postoperative rate of new neurological deficits was 26.6% (12/45). Postoperative new permanent cranial nerve deficits occurred in one case with 4th ventricle subependymoma and one in 4th ventricle ependymoma. Postoperative KPSS was 90% (IR 80-100). 31.1% of the patients improved in KPSS, 48.9% remained unchanged and 20% declined. Postoperative adverse events rate was 20.0%. Surgery-related mortality was 2.2%. The rate of shunt/cisternostomy-dependent hydrocephalus was 13.3% (6/45). 15.4% of resected ependymomas underwent adjuvant radiotherapy. Mean follow-up was 26,9 (±30.1) months.Conclusion: Our surgical findings emphasize satisfactory complete resection throughout all entities. Surgical treatment can remain feasible, if institutional experience is given. Satisfying long-term survival and cure is possible by complete removal. Gross total resection should always be performed under function-remaining aspects due to mostly benign or slow growing nature of IVTs. Further data is needed to evaluate standard of care and alternative therapy options in rare cases of tumor recurrence or in case of patient collective not suitable for operative resection.

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Extra-axial ependymoma of the cerebral convexity: A very rare intracranial adult tumor

Cited by 8 publications

References 17 publications

Case report: Primary ependymoma of the trigeminal nerve presenting as trigeminal neuralgia

Case report: Primary ependymoma of the trigeminal nerve presenting as trigeminal neuralgia

Pure Cortical Ependymoma With RELA-Fusion Positive in a Young Adult

Intraventricular neuroepithelial tumors: Surgical outcome, technical considerations and review of literature

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